Adding delete and refresh actions

Keboo · Dec 23, 2021 · faa4e1d · faa4e1d
1 parent b1576f5
commit faa4e1d
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Showing 3 changed files with 72 additions and 14 deletions.
diff --git a/ColorKraken/CommandMixins.cs b/ColorKraken/CommandMixins.cs
@@ -0,0 +1,13 @@
+using System.Windows;
+
+using Microsoft.Toolkit.Mvvm.Input;
+
+namespace ColorKraken;
+
+public static class CommandMixins
+{
+    public static void RaiseCanExecuteChanged(this IRelayCommand command)
+    {
+        Application.Current.Dispatcher.Invoke(() => command.NotifyCanExecuteChanged());
+    }
+}
diff --git a/ColorKraken/MainWindow.xaml b/ColorKraken/MainWindow.xaml
@@ -39,11 +39,13 @@
         </Grid.RowDefinitions>
 
         <TextBlock Text="Enter the name for the new theme" />
-        <TextBox Text="{Binding Name}" materialDesign:HintAssist.Hint="Name" Grid.Row="1" />
+        <TextBox Text="{Binding Name}" materialDesign:HintAssist.Hint="Name" Grid.Row="1" 
+                 Margin="0,10"/>
 
         <ComboBox materialDesign:HintAssist.Hint="Based on theme" 
                   ItemsSource="{Binding Themes}"
-                  SelectedItem="{Binding SelectedTheme}" 
+                  SelectedItem="{Binding SelectedTheme}"
+                  Margin="0,5"
                   Grid.Row="2">
           <ComboBox.ItemTemplate>
             <DataTemplate DataType="{x:Type local:Theme}">
@@ -90,23 +92,35 @@
       </Grid.RowDefinitions>
 
       <materialDesign:ColorZone Mode="PrimaryLight">
-        <StackPanel Orientation="Horizontal">
-          <Button Content="{materialDesign:PackIcon Kind=FolderOpen}" 
+        <Grid>
+          <Grid.ColumnDefinitions>
+            <ColumnDefinition />
+            <ColumnDefinition Width="Auto"/>
+          </Grid.ColumnDefinitions>
+          <StackPanel Orientation="Horizontal">
+            <Button Content="{materialDesign:PackIcon Kind=FolderOpen}" 
                   Command="{Binding OpenThemeFolderCommand}"
                   ToolTip="Open theme folder"/>
 
-          <ComboBox ItemsSource="{Binding Themes}"
+            <ComboBox ItemsSource="{Binding Themes}"
                     SelectedItem="{Binding SelectedTheme}"
                     MinWidth="200" Margin="10,3">
-            <ComboBox.ItemTemplate>
-              <DataTemplate DataType="{x:Type local:Theme}">
-                <TextBlock Text="{Binding Name}" />
-              </DataTemplate>
-            </ComboBox.ItemTemplate>
-          </ComboBox>
-          <Button Content="_New" Command="{Binding NewThemeCommand}" 
+              <ComboBox.ItemTemplate>
+                <DataTemplate DataType="{x:Type local:Theme}">
+                  <TextBlock Text="{Binding Name}" />
+                </DataTemplate>
+              </ComboBox.ItemTemplate>
+            </ComboBox>
+            <Button Content="_New" Command="{Binding NewThemeCommand}" 
                 VerticalAlignment="Center" />
-        </StackPanel>
+          </StackPanel>
+          <StackPanel Orientation="Horizontal" Grid.Column="1">
+            <Button Content="{materialDesign:PackIcon Kind=Delete}" Command="{Binding DeleteCommand}" 
+                    ToolTip="Delete current theme"/>
+            <Button Content="{materialDesign:PackIcon Kind=Refresh}" Command="{Binding RefreshCommand}" 
+                    ToolTip="Reload all themes" Margin="5,0"/>
+          </StackPanel>
+        </Grid>
       </materialDesign:ColorZone>
 
       <ScrollViewer Grid.Row="1">
@@ -124,7 +138,7 @@
               </Style.Triggers>
             </Style>
           </ItemsControl.Style>
-          
+
           <ItemsControl.ItemTemplate>
             <DataTemplate DataType="{x:Type local:ThemeCategory}">
               <GroupBox Header="{Binding Name}" HorizontalContentAlignment="Stretch" Margin="1,2">

diff --git a/ColorKraken/MainWindowViewModel.cs b/ColorKraken/MainWindowViewModel.cs
@@ -36,6 +36,8 @@ public class MainWindowViewModel : ObservableObject, IRecipient<BrushUpdated>
     public SnackbarMessageQueue MessageQueue { get; } = new();
 
     public AsyncRelayCommand NewThemeCommand { get; }
+    public IRelayCommand DeleteCommand { get; }
+    public IRelayCommand RefreshCommand { get; }
     public IRelayCommand OpenThemeFolderCommand { get; }
 
     public ObservableCollection<Theme> Themes { get; } = new();
@@ -59,6 +61,7 @@ public Theme? SelectedTheme
         {
             if (SetProperty(ref _selectedTheme, value))
             {
+                DeleteCommand.RaiseCanExecuteChanged();
                 UndoStack.Clear();
                 Task.Run(async () =>
                 {
@@ -74,6 +77,8 @@ public MainWindowViewModel()
 
         NewThemeCommand = new AsyncRelayCommand(NewTheme);
         OpenThemeFolderCommand = new RelayCommand(OnOpenThemeFolder);
+        DeleteCommand = new RelayCommand(OnDelete, () => SelectedTheme != null && SelectedTheme.IsDefault == false);
+        RefreshCommand = new AsyncRelayCommand(OnRefresh);
 
         BindingOperations.EnableCollectionSynchronization(Themes, new object());
 
@@ -342,6 +347,32 @@ private async void OnShowErrorDetails(string? details)
         if (string.IsNullOrEmpty(details)) return;
         await DialogHost.Show(new ErrorDetailsViewModel(details), "Root");
     }
+
+    private void OnDelete()
+    {
+        //TODO: prompt
+        if (SelectedTheme is { } selectedTheme && selectedTheme.IsDefault == false)
+        {
+            try
+            {
+                File.Delete(selectedTheme.FilePath);
+            }
+            catch(Exception e)
+            {
+                ShowError($"Error deleting {Path.GetFileName(selectedTheme.FilePath)}", e.ToString());
+                return;
+            }
+            SelectedTheme = null;
+            Themes.Remove(selectedTheme);
+        }
+    }
+
+    public async Task OnRefresh()
+    {
+        SelectedTheme = null;
+        Themes.Clear();
+        await Task.Run(LoadThemes);
+    }
 }
 
 public record class ErrorDetailsViewModel(string Details) { }